From owner-freebsd-hackers@freebsd.org  Tue Nov 10 20:01:30 2015
Return-Path: <owner-freebsd-hackers@freebsd.org>
Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 425FBA2CE57
 for <freebsd-hackers@mailman.ysv.freebsd.org>;
 Tue, 10 Nov 2015 20:01:30 +0000 (UTC)
 (envelope-from radovanovic@gmail.com)
Received: from mail-wm0-x235.google.com (mail-wm0-x235.google.com
 [IPv6:2a00:1450:400c:c09::235])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id CBE621A7D
 for <freebsd-hackers@freebsd.org>; Tue, 10 Nov 2015 20:01:29 +0000 (UTC)
 (envelope-from radovanovic@gmail.com)
Received: by wmec201 with SMTP id c201so151279867wme.0
 for <freebsd-hackers@freebsd.org>; Tue, 10 Nov 2015 12:01:28 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=message-id:date:from:user-agent:mime-version:to:cc:subject
 :references:in-reply-to:content-type:content-transfer-encoding;
 bh=J+5a0R2d60/HlzFkHec/qwgRq3spynglwrRa5lQ9f1s=;
 b=M3Ux9KA8SsJ0d2LvRG/UHytGHa00FreOJRzJwKY5Os0QGo3utNpTKr3LVzaggnrtPV
 6kFrNmr3cpQ1+xy2456PbTZzqcxUpi//GyWdPphShqLy6LgU4c0GldvtJ2FtSkpDsR5o
 u9OXzoGfvxbTI1nGBY0y5ddTVy6I6OGwj8h50mDjbVbHgBB99WPeXBd2MfmSuU3gK++7
 ogqrRrS+Cciv0HAoaHVRQcl3Rng7h/HbNMAyB2tZyVctvqfmU3OlRo7lZy5aqkDG915C
 H00OAx8vgIMAJcinZ7Q8VUeQV4nAqHNeSBwN5Fbz4a2X4Tc9lwcqHhe+qGWTq+O5yhRh
 0UdQ==
X-Received: by 10.194.200.233 with SMTP id jv9mr5910541wjc.133.1447185688310; 
 Tue, 10 Nov 2015 12:01:28 -0800 (PST)
Received: from zmaj.softwarehood.com (93-87-243-129.dynamic.isp.telekom.rs.
 [93.87.243.129])
 by smtp.googlemail.com with ESMTPSA id cw3sm1038833wjb.26.2015.11.10.12.01.27
 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
 Tue, 10 Nov 2015 12:01:27 -0800 (PST)
Message-ID: <56424D17.3060303@gmail.com>
Date: Tue, 10 Nov 2015 21:01:27 +0100
From: Ivan Radovanovic <radovanovic@gmail.com>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:17.0) Gecko/20130812 Thunderbird/17.0.8
MIME-Version: 1.0
To: Konstantin Belousov <kostikbel@gmail.com>
CC: freebsd-hackers@FreeBSD.org
Subject: Re: Detecting new file name after receiving kevent's NOTE_RENAME
References: <5641A2A5.7070909@gmail.com> <20151110081421.GL2257@kib.kiev.ua>
 <5641B6D0.4070207@gmail.com> <20151110121309.GO2257@kib.kiev.ua>
 <56424A5B.3070208@gmail.com>
In-Reply-To: <56424A5B.3070208@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 10 Nov 2015 20:01:30 -0000

On 11/10/15 20:49, Ivan Radovanovic napisa:
> On 11/10/15 13:13, Konstantin Belousov napisa:
>> On Tue, Nov 10, 2015 at 10:20:16AM +0100, Ivan Radovanovic wrote:
>>> Thanks, kern.proc.filedesc is super-efficient compared to what I had in
>>> mind. I assume right way to use it would be through kinfo_getfile(3).
>>
>> Both direct sysctl use and kinfo_getfile() are supported, in the sense
>> that the API and ABI of the interfaces are not supposed to change in
>> non-backward compatible way, and the interfaces itself are not supposed
>> to disappear.
>>
>
> Thanks. After *lot* of copying structures from C to C# I got to the file
> structure, but it doesn't seem obvious to me how to get to the file name
> from there?

Ignore previous email, I wasted time copying kinfo_proc instead of 
kinfo_file...